SAP modules explained in plain English — what FI, CO, MM and SD really do, how they connect behind the scenes, and why S/4HANA now calls them Lines of Business.
Every SAP project involves security — roles, profiles, authorization objects, SU24, PFCG. But very few people have a clear mental model of how they fit together. This post explains SAP's authorisation concept from the ground up: what an authorization object is, how roles work, what PFCG and SU24 do, and how Fiori adds a layer on top — written for consultants at every level.
SAP Activate has six well-known phases, but one workshop actually decides whether your S/4HANA project succeeds. Here is what happens in each phase — and where it breaks.
SAP HANA is SAP's in-memory, columnar database — not just a faster disk system. Here is what in-memory computing actually means, and why S/4HANA runs on it.
XML is a data format, not a programming language. This post explains what XML is, how it works, and the five places you will still find it in SAP landscapes in 2026.
Never lost your code to a bad edit? Never wished you could just go back to the version that worked? That is exactly what Git solves. This guide explains Git, GitHub and VS Code in plain English — what each tool does, how they work together, and how to set everything up from scratch. Includes a full command reference, branching explained simply, real workflow scenarios, and answers to the most common questions developers ask. Whether you are writing your first line of code or refreshing your fundamentals, this is the guide you will come back to.
ABAP Objects reshaped how SAP applications get built, from BAdIs to RAP. Here is the mental model for classes, objects, interfaces and inheritance every ABAP developer needs.
DNS translates domain names into IP addresses. This post explains how the lookup chain works, which DNS records matter and what breaks when DNS goes wrong — no jargon.
SAP powers the world's largest organisations — but most people who use it daily have never had it properly explained. This guide breaks down what SAP is, how it works, which products matter, and why it's so complex. From the one-line answer to a full quick-reference glossary — whether you're hearing the acronym for the first time or need a fast refresh.
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